Update build-openwrt.yml

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Signed-off-by: aUsernameWoW <[email protected]>

.github/workflows/build-openwrt.yml

@@ -19,7 +19,23 @@ jobs:
     - name: Set up environment
       run: |
         sudo apt update
-        sudo apt install build-essential clang flex bison g++ gawk gcc-multilib g++-multilib gettext git libncurses5-dev libssl-dev python3-setuptools rsync swig unzip zlib1g-dev file wget
+        sudo apt install -y build-essential clang flex bison g++ gawk gcc-multilib g++-multilib gettext git libncurses5-dev libssl-dev python3-setuptools rsync swig unzip zlib1g-dev file wget
+
+    - name: Cache OpenWRT dl folder
+      uses: actions/cache@v3
+      with:
+        path: openwrt/dl
+        key: ${{ runner.os }}-openwrt-dl-${{ hashFiles('openwrt/feeds.conf.default') }}
+        restore-keys: |
+          ${{ runner.os }}-openwrt-dl-
+
+    - name: Cache OpenWRT build_dir
+      uses: actions/cache@v3
+      with:
+        path: openwrt/build_dir
+        key: ${{ runner.os }}-openwrt-build-${{ hashFiles('openwrt/.config') }}
+        restore-keys: |
+          ${{ runner.os }}-openwrt-build-
 
     - name: Clone OpenWRT
       run: |